7 march 1995 Ottawa You probably could tamper with the from: field but it is never a goo idea to deviate from accepted network standards. making a list subscribe by owner, confidential and restricting review to owner and marking all subscribers as concealed from public review is about as confidential as you can get. Of course you could pgp encrypt each message sent to the list and use an anonymous server to hide your true identity but someone who wants to snoop will set up a mail transport site on the net and snoop at the headers of the mail in transit. There are some bbs which routinely assign an alias to their users for use on local conferences. I know of one such bbs with a discussion group for teens with aids and the kids can talk freely about their concerns and surprisingly are extremely good about playing by the rules about no flames etc.